Method showBigTextFile

src/cceditor/ccnotepad.cpp:4853–4920

显示超大文本文件只读

//显示超大文本文件只读
bool CCNotePad::showBigTextFile(ScintillaEditView* pEdit, TextFileMgr* txtFile)
{
	qint64 addr = txtFile->fileOffset - txtFile->contentRealSize;


	CODE_ID code = (CODE_ID)txtFile->loadWithCode;

	//不知道编码，则需要自动判断编码
	if (txtFile->loadWithCode == UNKOWN)
	{
		//自动从头部或文件中判断编码
		code = CmpareMode::getTextFileEncodeType((uchar *)txtFile->contentBuf, txtFile->contentRealSize, txtFile->filePath);
	}

	QString outUtf8Text;

	bool tranSucess = true;


	//UNICODE_LE格式需要单独处理
	if (code == UNICODE_LE)
	{
		tranSucess = CmpareMode::tranUnicodeLeToUtf8Bytes((uchar*)txtFile->contentBuf, txtFile->contentRealSize, outUtf8Text);
	}
	else
	{
		//如果还是unknown,则没法了，默认按照Utf8解析。
		if (code == UNKOWN)
		{
			code = UTF8_NOBOM;
		}
		tranSucess = Encode::tranStrToUNICODE(code, (const char*)txtFile->contentBuf, txtFile->contentRealSize, outUtf8Text);
	}

	if (txtFile->loadWithCode != code)
	{
		txtFile->loadWithCode = code;
	}

	//获取行结尾信息
	if (txtFile->lineEndType == RC_LINE_FORM::UNKNOWN_LINE)
	{
		txtFile->lineEndType = getLineEndTypeFromBigText(outUtf8Text);
	}

	pEdit->setText(outUtf8Text);

	if (tranSucess)
	{
	ui.statusBar->showMessage(tr("Current offset is %1 , load Contens Size is %2, File Total Size is %3").arg(addr).arg(txtFile->contentRealSize).arg(txtFile->fileSize));
	}
	else
	{
		//文件乱码
		if (txtFile->contentBuf == 0)
		{
			QMessageBox::warning(this, tr("Format Error"), tr("Not a txt format file , load with big txt is garbled code!"));
		}